Carbureter.



.2 SHEETS-SHEET l.`

Fammi Septh 24,1910

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" -E. ExcoFFlER.

cAnuREvTER.

APPLICATION FILED NOV. Il. |915.

Patented sept; 24,1918.

2 SHEETS-SHEET 2- zle is reduced. At last, when the Vhand-lever H1 is carried clockwise to its extreme position, the opening. between the plates is a minimum (Fig. 5) and the two ports have only very small portions of their openin s corresponding with one another (Fig. 12%. In any case, however, the liquid drawn out of the spraying nozzle t is delivered to the central portion of the passage between the plates. This is especially the case When the passage between `the plates is reduced to its minimum, so that the suction of the engine Works directlyr on the spraying nozzle.

In the drawing as hereinbefore indicated,

the parts of the carbureter are shown as set in the positions for normal use, that is to say, in the positions in Which the port in the cover or ca i is coincident with the port in the end of the spraying nozzle When the iris diaphragm is opened to its fullest extent; `The revoluble position of the spraying nozzle however, as hereinbefore indicated, may be adjusted by turning the disk 'a so as to bring the port in the end of the spraying nozzle to a place in which it Will be entirely uncovered by the port in thecover or cap before the iris diaphragm is opened to its fullest extent so that in the continued opening of the iris diaphragm the. continued movement of the cover or cap will progressively close the port in the end of the spraying nozzle, this adjustment being useful when the carbureter is operating in a rarefied atmosphere to enable an increased admission of air with the correspondingly decreased supply of liquid fuel, as for example, in connection with aeroplane motors in flying a considerable distance above the surface of the earth.

It must be Well understood that the described construction is given by Way of example only and that the details of the same and the relative dimensions of the different parts may differ Without departing from the scope of the invention as hereinafter claimed.

The sprayin -nozzle t may be provided with a conoida member rw1 surrounding it, and extendin to the hand-lever fw. The chamber 'w2 etween it and the spraying nozzle is filled with liquid fuel when the motor stands still, so that the spraying nozzle is copiously fed when next started. For this purpose the level of the fuel in the cylindrical body a is fixed for instance, at one millimeter lower than the top of the spraying nozzle t, but at four millimeters over a small port z which is placed in the spraying nozzle With which another small port e1 in the cover v (see Fig. 17) comes into juxtaposition when the ring G1 is in the shut ofi' position so that the aforesaid chamber fills itself as soon as the motor stands still and causes no suction at all. The chamber fu, may have one or more apertures A1 for the suction of Warm air and be provided with baffle-plates or air-channels O2, 0,

controlling the air passage to the top of the f spraying-nozzle. ber 'w1 is employed it will naturally reduce When the conoidal memthe area of the air passages by substantially phragm and determine the corresponding extent to which the port in the cap opens the port in the spraying nozzle, and means for varying the position of the spraying nozzle to determine the place at which the ports in the cap and the spraying nozzle are coincident relatively to the extent of the opening in the diaphragm.

2. A carbureter comprising a casing, a spraying nozzle having a discharge port in the end thereof5 a cap fitting over the end of the spraying nozzle and having a port therein adapted to open the port in the end of the spraying nozzle a predetermined extent, an iris diaphragm adjustable to position to vary the extent of the opening therein, means for simultaneously operatm the diaphragm and cap to vary the size o the opening in the diaphragm and correspondingly vary the extent to which the port in the cap opens the port in the end of the spraying nozzle, and means for varying the revoluble position of the spraying nozzle to determine the place at which the ports in the cap and the end ofthe spraying nozzle are coincident relatively to the extent of the opening in the iris diaphragm.

3. A carbureter comprising a casing, a spraying nozzle havin a discharge port `in the end thereof, a cap tting over the end of the spraying nozzle and havin a port therein adapted to open the port 1n thexend of the spraying nozzle a predetermined extent` an iris diaphragm adjustable to position to vary the extent of the opening therein, means for simultaneously operating a diaphragm and cap to vary the size of the opening in the diaphragm and correspondingly vary the extent to which the port in the cap opens the port in the end of the spraying nozzle, a dlsk mounted in the casing and in which the spraying nozzle is secured, and a spring for yieldmgliy maintaining the spraying nozzle and dis in position so that the same may be adjusted revolfubly to determine the position of the discharge port in the spraym nozzle at which the same is coincident Wit the port `in the cap relativey 't'nth'eI extent of' the opening' uf" the ir s diaphragm.

4;. Ai Umb-wrevel'V eomprjsing n casing, :n spl'ayillg noz'ze having; 'a dselxm'ge port therein, [u gever' member on 'the vSpraying nozzle' and=p0vded= with a per-t therein; means for moving saidcovenmember to d'0'- termine the extent to which the discharge pqrt* in @he Sprayingnozzleis open, a supply tank, mea-ns providing eovmnnmiczltion' 11e:- t\vee11,the said' supply tank and Spraying nozzle,- and-'n mem'ex' attaehed'to'the end of umm.

the spraying nozzle' surrounding the same, :mdl provided with` nport which When the (hiseharge port in the sprayin nozzlel is closed is" open." t0 thefinteror ov the' Spraylngnozf/,le sons tell'eceve a charge of'liquid from said supply tank.

In testimonywhereof I have ztxed my sgnatnne in presenceoftwo Witnesses.

EUGENE EXCOFFIER.

Ttnesses Dit ROD DE WUR'TENBURG, LOUISH. MUNIER.

Cbpiqvf tlvplltimv mly be ot'ainedtarlvecem enh; auld'relsmiixgv the Commissioner of Patents,

Whllngtoni-D. Ui 

